Pendulum clock

for dummies

Ivo Six3IO

ConstructieleerDocent: Rino Versluys

400 days clock

HistoryInventor: Christiaan HuygensYear: 1656Nationality: Dutch (Netherlands)

Error a day: 15 min ↔ 15 sec

Parts

Escapement

Mainspring

Gear train

Pointers

Pendulum

Pendulum

Diameter = important time BoldWire = Springsteel no deformation no loss of energy

Spheres = SteelRest = Copper

EscapementGear = CopperLow corrosion & easy to produce

Axis = Steel Cheep

Gear train

Minute axis

60 min number of returns = 240

Small gear to big gear = Slower

Plain bearing low speed, no maintenance

Mainspring

Force high

Speed up

400 days = 9600 hours = 5,7 turns

Wind up tool

PAL system

Pointers

Plastic axis (hour) & metal axis (minute) Low friction

Minute axis 1 tour Hour axis 1/12 tour

Inventions